GENETICS CHAPTER 9 MC/TF – Flashcards
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Which of the following organelles are involved in the general category of organelle heredity?
A) mitochondria and chloroplasts
B) R factors
C) Lysosomes and peroxisomes
D) Factors and episomes
E) Golgi and rough endoplasmic reticulum
answer
mitochondria and chloroplasts
question
The term heteroplasmy refers to which of the following?
A) cells with a variable mixture of normal and abnormal organelles
B) heterozygous individuals with more than one gene pair involved
C) conditions where the germ plasm is a mixture of dominant and recessive genes
D) a circumstance that is homologous to incomplete dominance
E) various stages of development of mitochondria and chloroplasts
answer
cells with a variable mixture of normal and abnormal organelles
question
One explanation for organelle inheritance is that
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Mitochondria and chloroplasts have DNA that is subject to mutation
question
T/F
Mitochondrial mutations are passed equally to offspring by both males and females.
answer
False
(mitochondrial mutations are only passed by the mother)
question
T/F
It is safe to say that a maternal effect is caused by the genotype, not the phenotype, of the parent producing the egg.
answer
True
question
T/F
tRNAs and rRNAs are known to be encoded by mitochondrial DNA.
answer
True
